{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:R4ENT3TGDI56G6M7ERM3PC7W7I","short_pith_number":"pith:R4ENT3TG","canonical_record":{"source":{"id":"1708.02494","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-08-08T14:05:01Z","cross_cats_sorted":[],"title_canon_sha256":"27cc664c1b0394c94fb5d4f8761ca5aad7636f1a2e5782540ea081e27a956204","abstract_canon_sha256":"23452a69de4d159a6d87c1e28a15e0c53dd6cd3f21c100997dff2f70c1aad0c1"},"schema_version":"1.0"},"canonical_sha256":"8f08d9ee661a3be3799f2459b78bf6fa19be9d565f6b1b5aecd015bc51fc275a","source":{"kind":"arxiv","id":"1708.02494","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.02494","created_at":"2026-05-18T00:20:39Z"},{"alias_kind":"arxiv_version","alias_value":"1708.02494v2","created_at":"2026-05-18T00:20:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.02494","created_at":"2026-05-18T00:20:39Z"},{"alias_kind":"pith_short_12","alias_value":"R4ENT3TGDI56","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_16","alias_value":"R4ENT3TGDI56G6M7","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_8","alias_value":"R4ENT3TG","created_at":"2026-05-18T12:31:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:R4ENT3TGDI56G6M7ERM3PC7W7I","target":"record","payload":{"canonical_record":{"source":{"id":"1708.02494","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-08-08T14:05:01Z","cross_cats_sorted":[],"title_canon_sha256":"27cc664c1b0394c94fb5d4f8761ca5aad7636f1a2e5782540ea081e27a956204","abstract_canon_sha256":"23452a69de4d159a6d87c1e28a15e0c53dd6cd3f21c100997dff2f70c1aad0c1"},"schema_version":"1.0"},"canonical_sha256":"8f08d9ee661a3be3799f2459b78bf6fa19be9d565f6b1b5aecd015bc51fc275a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:20:39.316365Z","signature_b64":"W0j/6nzuUHe6610GVinTCmLS1R4ss7KiXLPQHnz5HVv3FP0pIFqFM6wzCBQuxv9GTpoUS/wEl5YNntdia66EAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8f08d9ee661a3be3799f2459b78bf6fa19be9d565f6b1b5aecd015bc51fc275a","last_reissued_at":"2026-05-18T00:20:39.315733Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:20:39.315733Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1708.02494","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:20:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Qf5OhwDryHEVvz+NPmX4sEX1c3IsflwcVdD3cEi4ucuJDxtPToRcbAuPc9RRuRF8YUjz65TheUTV/jihNaa0CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T23:14:14.706975Z"},"content_sha256":"e12855c72f63b23b1b38fb7ce93d1dac972354a1d994abbc9cf3a5a81f485a48","schema_version":"1.0","event_id":"sha256:e12855c72f63b23b1b38fb7ce93d1dac972354a1d994abbc9cf3a5a81f485a48"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:R4ENT3TGDI56G6M7ERM3PC7W7I","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Janus and Huygens' dipolar sources for near-field directionality","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Anatoly V. Zayats, Francisco J. Rodr\\'iguez-Fortu\\~no, Michela F. Picardi","submitted_at":"2017-08-08T14:05:01Z","abstract_excerpt":"Controlling directionality of emission, scattering and waveguiding is an important requirement in quantum optical technology, integrated photonics and new metasurface designs, as well as radio and microwave engineering. Recently, several approaches have been developed to achieve unidirectional scattering in the far-field relying on Huygens' dipolar sources, and in waveguided optics based on spin-Hall effects involving circularly polarised electric or magnetic dipoles, all of which can be realised with plasmonic or dielectric nanoparticles. Here we show that there exists a dipolar source compli"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.02494","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:20:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xb1yKxYqz9ndF/VosQVOU4pDWUGZVROKXrUK31HPxMPkle73MtEvX61jvFO3MlCsxva9BLo5g3dNPmJnyyXBBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T23:14:14.707820Z"},"content_sha256":"6f07b86f41b7c6118843e101d490146d4a6d8ec1d4e41cffdb86830b45948e61","schema_version":"1.0","event_id":"sha256:6f07b86f41b7c6118843e101d490146d4a6d8ec1d4e41cffdb86830b45948e61"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/R4ENT3TGDI56G6M7ERM3PC7W7I/bundle.json","state_url":"https://pith.science/pith/R4ENT3TGDI56G6M7ERM3PC7W7I/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/R4ENT3TGDI56G6M7ERM3PC7W7I/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-30T23:14:14Z","links":{"resolver":"https://pith.science/pith/R4ENT3TGDI56G6M7ERM3PC7W7I","bundle":"https://pith.science/pith/R4ENT3TGDI56G6M7ERM3PC7W7I/bundle.json","state":"https://pith.science/pith/R4ENT3TGDI56G6M7ERM3PC7W7I/state.json","well_known_bundle":"https://pith.science/.well-known/pith/R4ENT3TGDI56G6M7ERM3PC7W7I/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:R4ENT3TGDI56G6M7ERM3PC7W7I","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"23452a69de4d159a6d87c1e28a15e0c53dd6cd3f21c100997dff2f70c1aad0c1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-08-08T14:05:01Z","title_canon_sha256":"27cc664c1b0394c94fb5d4f8761ca5aad7636f1a2e5782540ea081e27a956204"},"schema_version":"1.0","source":{"id":"1708.02494","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.02494","created_at":"2026-05-18T00:20:39Z"},{"alias_kind":"arxiv_version","alias_value":"1708.02494v2","created_at":"2026-05-18T00:20:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.02494","created_at":"2026-05-18T00:20:39Z"},{"alias_kind":"pith_short_12","alias_value":"R4ENT3TGDI56","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_16","alias_value":"R4ENT3TGDI56G6M7","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_8","alias_value":"R4ENT3TG","created_at":"2026-05-18T12:31:39Z"}],"graph_snapshots":[{"event_id":"sha256:6f07b86f41b7c6118843e101d490146d4a6d8ec1d4e41cffdb86830b45948e61","target":"graph","created_at":"2026-05-18T00:20:39Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Controlling directionality of emission, scattering and waveguiding is an important requirement in quantum optical technology, integrated photonics and new metasurface designs, as well as radio and microwave engineering. Recently, several approaches have been developed to achieve unidirectional scattering in the far-field relying on Huygens' dipolar sources, and in waveguided optics based on spin-Hall effects involving circularly polarised electric or magnetic dipoles, all of which can be realised with plasmonic or dielectric nanoparticles. Here we show that there exists a dipolar source compli","authors_text":"Anatoly V. Zayats, Francisco J. Rodr\\'iguez-Fortu\\~no, Michela F. Picardi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-08-08T14:05:01Z","title":"Janus and Huygens' dipolar sources for near-field directionality"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.02494","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:e12855c72f63b23b1b38fb7ce93d1dac972354a1d994abbc9cf3a5a81f485a48","target":"record","created_at":"2026-05-18T00:20:39Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"23452a69de4d159a6d87c1e28a15e0c53dd6cd3f21c100997dff2f70c1aad0c1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-08-08T14:05:01Z","title_canon_sha256":"27cc664c1b0394c94fb5d4f8761ca5aad7636f1a2e5782540ea081e27a956204"},"schema_version":"1.0","source":{"id":"1708.02494","kind":"arxiv","version":2}},"canonical_sha256":"8f08d9ee661a3be3799f2459b78bf6fa19be9d565f6b1b5aecd015bc51fc275a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8f08d9ee661a3be3799f2459b78bf6fa19be9d565f6b1b5aecd015bc51fc275a","first_computed_at":"2026-05-18T00:20:39.315733Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:20:39.315733Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"W0j/6nzuUHe6610GVinTCmLS1R4ss7KiXLPQHnz5HVv3FP0pIFqFM6wzCBQuxv9GTpoUS/wEl5YNntdia66EAw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:20:39.316365Z","signed_message":"canonical_sha256_bytes"},"source_id":"1708.02494","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e12855c72f63b23b1b38fb7ce93d1dac972354a1d994abbc9cf3a5a81f485a48","sha256:6f07b86f41b7c6118843e101d490146d4a6d8ec1d4e41cffdb86830b45948e61"],"state_sha256":"f878b784fc594387fe04d29e2530ba737ce2d3a890c1e41f5cd1b2c370f2c078"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"betiXAouOPrqnEPvAOpV+ulq/gxycfeod5Bx1CgjQhJsRq3maZvMUIIbHjk+ql1Dgydey/ql97NFeM2juZ0yDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T23:14:14.712040Z","bundle_sha256":"085dc141158c07292ee5c118424981e636fa873b60222a98c12fa15293bc92a1"}}